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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/roms/seabios/src/hw/pci.c
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/roms/seabios/src/hw/pci.c')
-rw-r--r--qemu/roms/seabios/src/hw/pci.c282
1 files changed, 0 insertions, 282 deletions
diff --git a/qemu/roms/seabios/src/hw/pci.c b/qemu/roms/seabios/src/hw/pci.c
deleted file mode 100644
index a241d0675..000000000
--- a/qemu/roms/seabios/src/hw/pci.c
+++ /dev/null
@@ -1,282 +0,0 @@
-// PCI config space access functions.
-//
-// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
-// Copyright (C) 2002 MandrakeSoft S.A.
-//
-// This file may be distributed under the terms of the GNU LGPLv3 license.
-
-#include "malloc.h" // malloc_tmp
-#include "output.h" // dprintf
-#include "pci.h" // pci_config_writel
-#include "pci_regs.h" // PCI_VENDOR_ID
-#include "romfile.h" // romfile_loadint
-#include "string.h" // memset
-#include "util.h" // udelay
-#include "x86.h" // outl
-
-void pci_config_writel(u16 bdf, u32 addr, u32 val)
-{
- outl(0x80000000 | (bdf << 8) | (addr & 0xfc), PORT_PCI_CMD);
- outl(val, PORT_PCI_DATA);
-}
-
-void pci_config_writew(u16 bdf, u32 addr, u16 val)
-{
- outl(0x80000000 | (bdf << 8) | (addr & 0xfc), PORT_PCI_CMD);
- outw(val, PORT_PCI_DATA + (addr & 2));
-}
-
-void pci_config_writeb(u16 bdf, u32 addr, u8 val)
-{
- outl(0x80000000 | (bdf << 8) | (addr & 0xfc), PORT_PCI_CMD);
- outb(val, PORT_PCI_DATA + (addr & 3));
-}
-
-u32 pci_config_readl(u16 bdf, u32 addr)
-{
- outl(0x80000000 | (bdf << 8) | (addr & 0xfc), PORT_PCI_CMD);
- return inl(PORT_PCI_DATA);
-}
-
-u16 pci_config_readw(u16 bdf, u32 addr)
-{
- outl(0x80000000 | (bdf << 8) | (addr & 0xfc), PORT_PCI_CMD);
- return inw(PORT_PCI_DATA + (addr & 2));
-}
-
-u8 pci_config_readb(u16 bdf, u32 addr)
-{
- outl(0x80000000 | (bdf << 8) | (addr & 0xfc), PORT_PCI_CMD);
- return inb(PORT_PCI_DATA + (addr & 3));
-}
-
-void
-pci_config_maskw(u16 bdf, u32 addr, u16 off, u16 on)
-{
- u16 val = pci_config_readw(bdf, addr);
- val = (val & ~off) | on;
- pci_config_writew(bdf, addr, val);
-}
-
-// Helper function for foreachbdf() macro - return next device
-int
-pci_next(int bdf, int bus)
-{
- if (pci_bdf_to_fn(bdf) == 0
- && (pci_config_readb(bdf, PCI_HEADER_TYPE) & 0x80) == 0)
- // Last found device wasn't a multi-function device - skip to
- // the next device.
- bdf += 8;
- else
- bdf += 1;
-
- for (;;) {
- if (pci_bdf_to_bus(bdf) != bus)
- return -1;
-
- u16 v = pci_config_readw(bdf, PCI_VENDOR_ID);
- if (v != 0x0000 && v != 0xffff)
- // Device is present.
- return bdf;
-
- if (pci_bdf_to_fn(bdf) == 0)
- bdf += 8;
- else
- bdf += 1;
- }
-}
-
-struct hlist_head PCIDevices VARVERIFY32INIT;
-int MaxPCIBus VARFSEG;
-
-// Check if PCI is available at all
-int
-pci_probe_host(void)
-{
- outl(0x80000000, PORT_PCI_CMD);
- if (inl(PORT_PCI_CMD) != 0x80000000) {
- dprintf(1, "Detected non-PCI system\n");
- return -1;
- }
- return 0;
-}
-
-// Find all PCI devices and populate PCIDevices linked list.
-void
-pci_probe_devices(void)
-{
- dprintf(3, "PCI probe\n");
- struct pci_device *busdevs[256];
- memset(busdevs, 0, sizeof(busdevs));
- struct hlist_node **pprev = &PCIDevices.first;
- int extraroots = romfile_loadint("etc/extra-pci-roots", 0);
- int bus = -1, lastbus = 0, rootbuses = 0, count=0;
- while (bus < 0xff && (bus < MaxPCIBus || rootbuses < extraroots)) {
- bus++;
- int bdf;
- foreachbdf(bdf, bus) {
- // Create new pci_device struct and add to list.
- struct pci_device *dev = malloc_tmp(sizeof(*dev));
- if (!dev) {
- warn_noalloc();
- return;
- }
- memset(dev, 0, sizeof(*dev));
- hlist_add(&dev->node, pprev);
- pprev = &dev->node.next;
- count++;
-
- // Find parent device.
- int rootbus;
- struct pci_device *parent = busdevs[bus];
- if (!parent) {
- if (bus != lastbus)
- rootbuses++;
- lastbus = bus;
- rootbus = rootbuses;
- if (bus > MaxPCIBus)
- MaxPCIBus = bus;
- } else {
- rootbus = parent->rootbus;
- }
-
- // Populate pci_device info.
- dev->bdf = bdf;
- dev->parent = parent;
- dev->rootbus = rootbus;
- u32 vendev = pci_config_readl(bdf, PCI_VENDOR_ID);
- dev->vendor = vendev & 0xffff;
- dev->device = vendev >> 16;
- u32 classrev = pci_config_readl(bdf, PCI_CLASS_REVISION);
- dev->class = classrev >> 16;
- dev->prog_if = classrev >> 8;
- dev->revision = classrev & 0xff;
- dev->header_type = pci_config_readb(bdf, PCI_HEADER_TYPE);
- u8 v = dev->header_type & 0x7f;
- if (v == PCI_HEADER_TYPE_BRIDGE || v == PCI_HEADER_TYPE_CARDBUS) {
- u8 secbus = pci_config_readb(bdf, PCI_SECONDARY_BUS);
- dev->secondary_bus = secbus;
- if (secbus > bus && !busdevs[secbus])
- busdevs[secbus] = dev;
- if (secbus > MaxPCIBus)
- MaxPCIBus = secbus;
- }
- dprintf(4, "PCI device %02x:%02x.%x (vd=%04x:%04x c=%04x)\n"
- , pci_bdf_to_bus(bdf), pci_bdf_to_dev(bdf)
- , pci_bdf_to_fn(bdf)
- , dev->vendor, dev->device, dev->class);
- }
- }
- dprintf(1, "Found %d PCI devices (max PCI bus is %02x)\n", count, MaxPCIBus);
-}
-
-// Search for a device with the specified vendor and device ids.
-struct pci_device *
-pci_find_device(u16 vendid, u16 devid)
-{
- struct pci_device *pci;
- foreachpci(pci) {
- if (pci->vendor == vendid && pci->device == devid)
- return pci;
- }
- return NULL;
-}
-
-// Search for a device with the specified class id.
-struct pci_device *
-pci_find_class(u16 classid)
-{
- struct pci_device *pci;
- foreachpci(pci) {
- if (pci->class == classid)
- return pci;
- }
- return NULL;
-}
-
-int pci_init_device(const struct pci_device_id *ids
- , struct pci_device *pci, void *arg)
-{
- while (ids->vendid || ids->class_mask) {
- if ((ids->vendid == PCI_ANY_ID || ids->vendid == pci->vendor) &&
- (ids->devid == PCI_ANY_ID || ids->devid == pci->device) &&
- !((ids->class ^ pci->class) & ids->class_mask)) {
- if (ids->func)
- ids->func(pci, arg);
- return 0;
- }
- ids++;
- }
- return -1;
-}
-
-struct pci_device *
-pci_find_init_device(const struct pci_device_id *ids, void *arg)
-{
- struct pci_device *pci;
- foreachpci(pci) {
- if (pci_init_device(ids, pci, arg) == 0)
- return pci;
- }
- return NULL;
-}
-
-u8 pci_find_capability(struct pci_device *pci, u8 cap_id, u8 cap)
-{
- int i;
- u16 status = pci_config_readw(pci->bdf, PCI_STATUS);
-
- if (!(status & PCI_STATUS_CAP_LIST))
- return 0;
-
- if (cap == 0) {
- /* find first */
- cap = pci_config_readb(pci->bdf, PCI_CAPABILITY_LIST);
- } else {
- /* find next */
- cap = pci_config_readb(pci->bdf, cap + PCI_CAP_LIST_NEXT);
- }
- for (i = 0; cap && i <= 0xff; i++) {
- if (pci_config_readb(pci->bdf, cap + PCI_CAP_LIST_ID) == cap_id)
- return cap;
- cap = pci_config_readb(pci->bdf, cap + PCI_CAP_LIST_NEXT);
- }
-
- return 0;
-}
-
-/* Test whether bridge support forwarding of transactions
- * of a specific type.
- * Note: disables bridge's window registers as a side effect.
- */
-int pci_bridge_has_region(struct pci_device *pci,
- enum pci_region_type region_type)
-{
- u8 base;
-
- switch (region_type) {
- case PCI_REGION_TYPE_IO:
- base = PCI_IO_BASE;
- break;
- case PCI_REGION_TYPE_PREFMEM:
- base = PCI_PREF_MEMORY_BASE;
- break;
- default:
- /* Regular memory support is mandatory */
- return 1;
- }
-
- pci_config_writeb(pci->bdf, base, 0xFF);
-
- return pci_config_readb(pci->bdf, base) != 0;
-}
-
-void
-pci_reboot(void)
-{
- u8 v = inb(PORT_PCI_REBOOT) & ~6;
- outb(v|2, PORT_PCI_REBOOT); /* Request hard reset */
- udelay(50);
- outb(v|6, PORT_PCI_REBOOT); /* Actually do the reset */
- udelay(50);
-}